IMPORTANT SHAREHOLDER ALERT: Khang & Khang LLP Announces Securities
Class Action Lawsuit against The Advisory Board Company and Encourages
Investors with Losses to Contact the Firm

August 08, 2017 06:08 PM Eastern Daylight Time

IRVINE, Calif.--(BUSINESS WIRE)--Khang & Khang LLP (the “Firm”) announces the filing of a securities
class action lawsuit against The Advisory Board Company (“Advisory
Board” or the “Company”) (Nasdaq: ABCO). Investors who purchased or
otherwise acquired shares between January 21, 2015 and February 23,
2016, inclusive (the “Class Period”), are encouraged to contact the Firm
in advance of the October 2, 2017 lead plaintiff motion deadline.

There has been no class certification in this case yet. Until
certification occurs, you are not represented by an attorney. You may
choose to take no action and remain a passive class member as well.

According to the Complaint, throughout the Class Period, Advisory Board
made materially false and/or misleading statements and/or failed to
disclose that there were severe integration problems associated with its
acquisition of Royall and, as a consequence of these integration
problems, the Company had no basis to increase the revenue guidance for
Royall during the Class Period. When this news was announced, shares of
Advisory Board declined in value materially, which caused investors harm
according to the Complaint.

If you wish to learn more about this lawsuit, or if you have any
questions concerning this notice or your rights, please contact Joon M.
Khang, Esquire, a prominent litigator for almost two decades, by
telephone: (949) 419-3834, or via e-mail at joon@khanglaw.com.

This press release may constitute Attorney Advertising in some
jurisdictions.